[Virus] PC Windows XP infecté

Salut à tous.
toujours des gros problemes d'instabilité sur mon PC Windows XP, et de programme qui ne répondent pas, à cause de ch de Troie(ou autres..?) impossible à sortir..
ci dessous le rapport HijackThis

si qqun peut m'aider
Merci d'avance
Corgan40f

Logfile of Trend Micro HijackThis v2.0.0 (BETA)
Scan saved at 23:31:52, on 08/07/2007
Platform: Windows XP (WinNT 5.01.2600)
Boot mode: Safe mode with network support

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\Documents and Settings\lucette\Bureau\VundoFix.exe
C:\Documents and Settings\lucette\Bureau\HiJackThis_v2.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.google.fr/?gws_rd=ssl
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: (no name) - {000D7538-147A-453E-83DB-EC7CA0C728D6} - C:\WINDOWS\System32\pmnli.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_01\bin\ssv.dll
O2 - BHO: (no name) - {F4002052-AB29-4B33-8C8D-0E99084564EC} - C:\WINDOWS\system32\qomkife.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [EPSON Stylus Photo RX420 Series] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_FATI9CE.EXE /P31 "EPSON Stylus Photo RX420 Series" /O6 "USB001" /M "Stylus Photo RX420"
O4 - HKLM\..\Run: [j4251439] rundll32 C:\WINDOWS\System32\j4251439.dll sook
O4 - HKLM\..\Run: [lnternet] C:\WINDOWS\System32\Winsecvp.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_01\bin\jusched.exe"
O4 - HKLM\..\RunServices: [lnternet] C:\WINDOWS\System32\Winsecvp.exe
O4 - HKLM\..\RunOnce: [VundoFix] "C:\Documents and Settings\lucette\Bureau\vundofix.exe"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [DDC] C:\WINDOWS\System32\tygiqgpk.exe
O4 - HKLM\..\Policies\Explorer\Run: [5T19I3B27A] C:\WINDOWS\svchost.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE LOCAL')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SERVICE RÉSEAU')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\System32\CTFMON.EXE (User 'Default user')
O4 - Startup: Démarrage d'Office.lnk = C:\Program Files\Microsoft Office\Office\OSA.EXE
O4 - Startup: Microsoft Recherche accélérée.lnk = C:\Program Files\Microsoft Office\Office\FINDFAST.EXE
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - https://www.trendmicro.com/en_us/forHome/products/housecall.html
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - https://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
O20 - Winlogon Notify: pmnli - C:\WINDOWS\System32\pmnli.dll
O20 - Winlogon Notify: qomkife - C:\WINDOWS\SYSTEM32\qomkife.dll
O22 - SharedTaskScheduler: Pré-chargeur Browseui - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\System32\browseui.dll
O22 - SharedTaskScheduler: Démon de cache des catégories de composant - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\System32\browseui.dll
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: Service d'administration du Gestionnaire de disque logique (dmadmin) - Unknown owner - C:\WINDOWS\System32\dmadmin.exe
O23 - Service: DomainService - Unknown owner - C:\WINDOWS\System32\tygiqgpk.exe (file missing)
O23 - Service: Journal des événements (Eventlog) - Unknown owner - C:\WINDOWS\system32\services.exe
O23 - Service: Service COM de gravage de CD IMAPI (ImapiService) - Unknown owner - C:\WINDOWS\System32\imapi.exe
O23 - Service: Memorex Network Analysis Tool - Unknown owner - C:\WINDOWS\System32\dllcache\winsntp.exe (file missing)
O23 - Service: Partage de Bureau à distance NetMeeting (mnmsrvc) - Unknown owner - C:\WINDOWS\System32\mnmsrvc.exe
O23 - Service: Network helper Service (MSDisk) - Unknown owner - C:\WINDOWS\System32\irdvxc.exe (file missing)
O23 - Service: DDE réseau (NetDDE) - Unknown owner - C:\WINDOWS\system32\netdde.exe
O23 - Service: DSDM DDE réseau (NetDDEdsdm) - Unknown owner - C:\WINDOWS\system32\netdde.exe
O23 - Service: Plug-and-Play (PlugPlay) - Unknown owner - C:\WINDOWS\system32\services.exe
O23 - Service: Gestionnaire de session d'aide sur le Bureau à distance (RDSessMgr) - Unknown owner - C:\WINDOWS\system32\sessmgr.exe
O23 - Service: Prise en charge des cartes à puces (SCardDrv) - Unknown owner - C:\WINDOWS\System32\SCardSvr.exe
O23 - Service: Carte à puce (SCardSvr) - Unknown owner - C:\WINDOWS\System32\SCardSvr.exe
O23 - Service: Senao Network Controller - Unknown owner - C:\WINDOWS\System32\dllcache\winsno.exe (file missing)
O23 - Service: Journaux et alertes de performance (SysmonLog) - Unknown owner - C:\WINDOWS\system32\smlogsvc.exe
O23 - Service: Telnet (TlntSvr) - Unknown owner - C:\WINDOWS\System32\tlntsvr.exe
O23 - Service: Cliché instantané de volume (VSS) - Unknown owner - C:\WINDOWS\System32\vssvc.exe
O23 - Service: Carte de performance WMI (WmiApSrv) - Unknown owner - C:\WINDOWS\System32\wbem\wmiapsrv.exe